package com.qk.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.qk.common.PageResult;
import com.qk.dto.UserDto;
import com.qk.entity.User;
import com.qk.exception.BusinessException;
import com.qk.mapper.UserMapper;
import com.qk.service.UserService;
import com.qk.utils.JwtUtils;
import com.qk.vo.LoginResultVo;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Slf4j
@Service
public class UserServiceImpl implements UserService {

    @Autowired
    private UserMapper userMapper;

    @Override
    public PageResult<User> list(UserDto userDto) {
        PageHelper.startPage(userDto.getPage(),userDto.getPageSize());

        List<User> list = userMapper.selectList(userDto);

        Page<User> page = (Page<User>) list;
        return new PageResult<>(page.getTotal(),page.getResult());
    }

    @Override
    public void add(User user) {
        user.setCreateTime(LocalDateTime.now());
        user.setUpdateTime(LocalDateTime.now());

        String password = user.getUsername()+"123";
        user.setPassword(DigestUtils.md5DigestAsHex(password.getBytes()));
        userMapper.insert(user);
        System.out.println("----------------------------");
    }

    @Override
    public void deleteByIds(List<Integer> ids) {
        userMapper.deleteByIds(ids);
    }

    @Override
    public User getById(Integer id) {
        return userMapper.selectById(id);
    }

    @Override
    public void update(User user) {
        user.setUpdateTime(LocalDateTime.now());

        String password = user.getUsername()+"123";
        user.setPassword(DigestUtils.md5DigestAsHex(password.getBytes()));
        userMapper.update(user);
    }

    @Override
    public List<User> getAllList() {
        return userMapper.getAllList();
    }

    @Override
    public List<User> getByRole(String roleLabel) {
        return userMapper.getByRole(roleLabel);
    }

    @Override
    public List<User> getByDept(Integer deptId) {
        return userMapper.getByDept(deptId);
    }

    @Override
    public LoginResultVo login(User user) {
        User u = userMapper.selectByUsername(user.getUsername());

        if(u==null){
            log.info("用户不存在");
            throw new BusinessException("用户名或密码错误");
        }

        String newPass = DigestUtils.md5DigestAsHex(user.getPassword().getBytes());
        if(!newPass.equals(u.getPassword())){
            log.info("密码错误");
            throw new BusinessException("用户名或密码错误");
        }

        if(u.getStatus()==0){
            log.info("用户被禁用");
            throw new BusinessException("用户被禁用");
        }

        LoginResultVo loginResultVo = new LoginResultVo();
        loginResultVo.setId(u.getId());
        loginResultVo.setUsername(u.getUsername());
        loginResultVo.setName(u.getName());
        loginResultVo.setImage(u.getImage());
        loginResultVo.setRoleLabel(u.getRoleLabel());


        Map<String,Object> claims = new HashMap<>();
        claims.put("id",u.getId());
        claims.put("username",u.getUsername());
        String jwt = JwtUtils.generateToken(claims);

        loginResultVo.setToken(jwt);

        return loginResultVo;
    }
}
